import { __decorate, __metadata } from "tslib"; import { Directive, ElementRef, HostListener, Input, OnChanges, OnInit, SimpleChanges } from '@angular/core'; import { FlowchartConstants } from './ngx-flowchart.models'; import { FcModelService } from './model.service'; let FcConnectorDirective = class FcConnectorDirective { constructor(elementRef) { this.elementRef = elementRef; } ngOnInit() { const element = $(this.elementRef.nativeElement); element.addClass(FlowchartConstants.connectorClass); if (this.modelservice.isEditable()) { element.attr('draggable', 'true'); this.updateConnectorClass(); } const connectorRectInfo = { type: this.connector.type, width: this.elementRef.nativeElement.offsetWidth, height: this.elementRef.nativeElement.offsetHeight, nodeRectInfo: this.nodeRectInfo }; this.modelservice.connectors.setConnectorRectInfo(this.connector.id, connectorRectInfo); } ngOnChanges(changes) { let updateConnector = false; for (const propName of Object.keys(changes)) { const change = changes[propName]; if (!change.firstChange && change.currentValue !== change.previousValue) { if (propName === 'mouseOverConnector') { updateConnector = true; } } } if (updateConnector && this.modelservice.isEditable()) { this.updateConnectorClass(); } } updateConnectorClass() { const element = $(this.elementRef.nativeElement); if (this.connector === this.mouseOverConnector) { element.addClass(FlowchartConstants.hoverClass); } else { element.removeClass(FlowchartConstants.hoverClass); } } dragover(event) { // Skip - conflict with magnet /* if (this.modelservice.isEditable()) { return this.callbacks.edgeDragoverConnector(event, this.connector); }*/ } drop(event) { if (this.modelservice.isEditable()) { return this.callbacks.edgeDrop(event, this.connector); } } dragend(event) { if (this.modelservice.isEditable()) { this.callbacks.edgeDragend(event); } } dragstart(event) { if (this.modelservice.isEditable()) { this.callbacks.edgeDragstart(event, this.connector); } } mouseenter(event) { if (this.modelservice.isEditable()) { this.callbacks.connectorMouseEnter(event, this.connector); } } mouseleave(event) { if (this.modelservice.isEditable()) { this.callbacks.connectorMouseLeave(event, this.connector); } } }; FcConnectorDirective.ctorParameters = () => [ { type: ElementRef } ]; __decorate([ Input(), __metadata("design:type", Object) ], FcConnectorDirective.prototype, "callbacks", void 0); __decorate([ Input(), __metadata("design:type", FcModelService) ], FcConnectorDirective.prototype, "modelservice", void 0); __decorate([ Input(), __metadata("design:type", Object) ], FcConnectorDirective.prototype, "connector", void 0); __decorate([ Input(), __metadata("design:type", Object) ], FcConnectorDirective.prototype, "nodeRectInfo", void 0); __decorate([ Input(), __metadata("design:type", Object) ], FcConnectorDirective.prototype, "mouseOverConnector", void 0); __decorate([ HostListener('dragover', ['$event']), __metadata("design:type", Function), __metadata("design:paramtypes", [Object]), __metadata("design:returntype", void 0) ], FcConnectorDirective.prototype, "dragover", null); __decorate([ HostListener('drop', ['$event']), __metadata("design:type", Function), __metadata("design:paramtypes", [Object]), __metadata("design:returntype", void 0) ], FcConnectorDirective.prototype, "drop", null); __decorate([ HostListener('dragend', ['$event']), __metadata("design:type", Function), __metadata("design:paramtypes", [Object]), __metadata("design:returntype", void 0) ], FcConnectorDirective.prototype, "dragend", null); __decorate([ HostListener('dragstart', ['$event']), __metadata("design:type", Function), __metadata("design:paramtypes", [Object]), __metadata("design:returntype", void 0) ], FcConnectorDirective.prototype, "dragstart", null); __decorate([ HostListener('mouseenter', ['$event']), __metadata("design:type", Function), __metadata("design:paramtypes", [MouseEvent]), __metadata("design:returntype", void 0) ], FcConnectorDirective.prototype, "mouseenter", null); __decorate([ HostListener('mouseleave', ['$event']), __metadata("design:type", Function), __metadata("design:paramtypes", [MouseEvent]), __metadata("design:returntype", void 0) ], FcConnectorDirective.prototype, "mouseleave", null); FcConnectorDirective = __decorate([ Directive({ // tslint:disable-next-line:directive-selector selector: '[fc-connector]' }), __metadata("design:paramtypes", [ElementRef]) ], FcConnectorDirective); export { FcConnectorDirective }; //# sourceMappingURL=data:application/json;base64,{"version":3,"file":"connector.directive.js","sourceRoot":"ng://ngx-flowchart/","sources":["lib/connector.directive.ts"],"names":[],"mappings":";AAAA,OAAO,EAAE,SAAS,EAAE,UAAU,EAAE,YAAY,EAAE,KAAK,EAAE,SAAS,EAAE,MAAM,EAAE,aAAa,EAAE,MAAM,eAAe,CAAC;AAC7G,OAAO,EAAiE,kBAAkB,EAAE,MAAM,wBAAwB,CAAC;AAC3H,OAAO,EAAE,cAAc,EAAE,MAAM,iBAAiB,CAAC;AAMjD,IAAa,oBAAoB,GAAjC,MAAa,oBAAoB;IAiB/B,YAAmB,UAAmC;QAAnC,eAAU,GAAV,UAAU,CAAyB;IACtD,CAAC;IAED,QAAQ;QACN,MAAM,OAAO,GAAG,CAAC,CAAC,IAAI,CAAC,UAAU,CAAC,aAAa,CAAC,CAAC;QACjD,OAAO,CAAC,QAAQ,CAAC,kBAAkB,CAAC,cAAc,CAAC,CAAC;QACpD,IAAI,IAAI,CAAC,YAAY,CAAC,UAAU,EAAE,EAAE;YAClC,OAAO,CAAC,IAAI,CAAC,WAAW,EAAE,MAAM,CAAC,CAAC;YAClC,IAAI,CAAC,oBAAoB,EAAE,CAAC;SAC7B;QACD,MAAM,iBAAiB,GAAwB;YAC7C,IAAI,EAAE,IAAI,CAAC,SAAS,CAAC,IAAI;YACzB,KAAK,EAAE,IAAI,CAAC,UAAU,CAAC,aAAa,CAAC,WAAW;YAChD,MAAM,EAAE,IAAI,CAAC,UAAU,CAAC,aAAa,CAAC,YAAY;YAClD,YAAY,EAAE,IAAI,CAAC,YAAY;SAChC,CAAC;QACF,IAAI,CAAC,YAAY,CAAC,UAAU,CAAC,oBAAoB,CAAC,IAAI,CAAC,SAAS,CAAC,EAAE,EAAE,iBAAiB,CAAC,CAAC;IAC1F,CAAC;IAED,WAAW,CAAC,OAAsB;QAChC,IAAI,eAAe,GAAG,KAAK,CAAC;QAC5B,KAAK,MAAM,QAAQ,IAAI,MAAM,CAAC,IAAI,CAAC,OAAO,CAAC,EAAE;YAC3C,MAAM,MAAM,GAAG,OAAO,CAAC,QAAQ,CAAC,CAAC;YACjC,IAAI,CAAC,MAAM,CAAC,WAAW,IAAI,MAAM,CAAC,YAAY,KAAK,MAAM,CAAC,aAAa,EAAE;gBACvE,IAAI,QAAQ,KAAK,oBAAoB,EAAE;oBACrC,eAAe,GAAG,IAAI,CAAC;iBACxB;aACF;SACF;QACD,IAAI,eAAe,IAAI,IAAI,CAAC,YAAY,CAAC,UAAU,EAAE,EAAE;YACrD,IAAI,CAAC,oBAAoB,EAAE,CAAC;SAC7B;IACH,CAAC;IAEO,oBAAoB;QAC1B,MAAM,OAAO,GAAG,CAAC,CAAC,IAAI,CAAC,UAAU,CAAC,aAAa,CAAC,CAAC;QACjD,IAAI,IAAI,CAAC,SAAS,KAAK,IAAI,CAAC,kBAAkB,EAAE;YAC9C,OAAO,CAAC,QAAQ,CAAC,kBAAkB,CAAC,UAAU,CAAC,CAAC;SACjD;aAAM;YACL,OAAO,CAAC,WAAW,CAAC,kBAAkB,CAAC,UAAU,CAAC,CAAC;SACpD;IACH,CAAC;IAGD,QAAQ,CAAC,KAAkB;QACzB,8BAA8B;QAC9B;;WAEG;IACL,CAAC;IAGD,IAAI,CAAC,KAAkB;QACrB,IAAI,IAAI,CAAC,YAAY,CAAC,UAAU,EAAE,EAAE;YAClC,OAAO,IAAI,CAAC,SAAS,CAAC,QAAQ,CAAC,KAAK,EAAE,IAAI,CAAC,SAAS,CAAC,CAAC;SACvD;IACH,CAAC;IAGD,OAAO,CAAC,KAAkB;QACxB,IAAI,IAAI,CAAC,YAAY,CAAC,UAAU,EAAE,EAAE;YAClC,IAAI,CAAC,SAAS,CAAC,WAAW,CAAC,KAAK,CAAC,CAAC;SACnC;IACH,CAAC;IAGD,SAAS,CAAC,KAAkB;QAC1B,IAAI,IAAI,CAAC,YAAY,CAAC,UAAU,EAAE,EAAE;YAClC,IAAI,CAAC,SAAS,CAAC,aAAa,CAAC,KAAK,EAAE,IAAI,CAAC,SAAS,CAAC,CAAC;SACrD;IACH,CAAC;IAGD,UAAU,CAAC,KAAiB;QAC1B,IAAI,IAAI,CAAC,YAAY,CAAC,UAAU,EAAE,EAAE;YAClC,IAAI,CAAC,SAAS,CAAC,mBAAmB,CAAC,KAAK,EAAE,IAAI,CAAC,SAAS,CAAC,CAAC;SAC3D;IACH,CAAC;IAGD,UAAU,CAAC,KAAiB;QAC1B,IAAI,IAAI,CAAC,YAAY,CAAC,UAAU,EAAE,EAAE;YAClC,IAAI,CAAC,SAAS,CAAC,mBAAmB,CAAC,KAAK,EAAE,IAAI,CAAC,SAAS,CAAC,CAAC;SAC3D;IACH,CAAC;CAEF,CAAA;;YAtFgC,UAAU;;AAdzC;IADC,KAAK,EAAE;;uDACe;AAGvB;IADC,KAAK,EAAE;8BACM,cAAc;0DAAC;AAG7B;IADC,KAAK,EAAE;;uDACe;AAGvB;IADC,KAAK,EAAE;;0DACqB;AAG7B;IADC,KAAK,EAAE;;gEACwB;AA8ChC;IADC,YAAY,CAAC,UAAU,EAAE,CAAC,QAAQ,CAAC,CAAC;;;;oDAMpC;AAGD;IADC,YAAY,CAAC,MAAM,EAAE,CAAC,QAAQ,CAAC,CAAC;;;;gDAKhC;AAGD;IADC,YAAY,CAAC,SAAS,EAAE,CAAC,QAAQ,CAAC,CAAC;;;;mDAKnC;AAGD;IADC,YAAY,CAAC,WAAW,EAAE,CAAC,QAAQ,CAAC,CAAC;;;;qDAKrC;AAGD;IADC,YAAY,CAAC,YAAY,EAAE,CAAC,QAAQ,CAAC,CAAC;;qCACrB,UAAU;;sDAI3B;AAGD;IADC,YAAY,CAAC,YAAY,EAAE,CAAC,QAAQ,CAAC,CAAC;;qCACrB,UAAU;;sDAI3B;AArGU,oBAAoB;IAJhC,SAAS,CAAC;QACT,8CAA8C;QAC9C,QAAQ,EAAE,gBAAgB;KAC3B,CAAC;qCAkB+B,UAAU;GAjB9B,oBAAoB,CAuGhC;SAvGY,oBAAoB","sourcesContent":["import { Directive, ElementRef, HostListener, Input, OnChanges, OnInit, SimpleChanges } from '@angular/core';\nimport { FcCallbacks, FcConnector, FcConnectorRectInfo, FcNodeRectInfo, FlowchartConstants } from './ngx-flowchart.models';\nimport { FcModelService } from './model.service';\n\n@Directive({\n  // tslint:disable-next-line:directive-selector\n  selector: '[fc-connector]'\n})\nexport class FcConnectorDirective implements OnInit, OnChanges {\n\n  @Input()\n  callbacks: FcCallbacks;\n\n  @Input()\n  modelservice: FcModelService;\n\n  @Input()\n  connector: FcConnector;\n\n  @Input()\n  nodeRectInfo: FcNodeRectInfo;\n\n  @Input()\n  mouseOverConnector: FcConnector;\n\n  constructor(public elementRef: ElementRef<HTMLElement>) {\n  }\n\n  ngOnInit(): void {\n    const element = $(this.elementRef.nativeElement);\n    element.addClass(FlowchartConstants.connectorClass);\n    if (this.modelservice.isEditable()) {\n      element.attr('draggable', 'true');\n      this.updateConnectorClass();\n    }\n    const connectorRectInfo: FcConnectorRectInfo = {\n      type: this.connector.type,\n      width: this.elementRef.nativeElement.offsetWidth,\n      height: this.elementRef.nativeElement.offsetHeight,\n      nodeRectInfo: this.nodeRectInfo\n    };\n    this.modelservice.connectors.setConnectorRectInfo(this.connector.id, connectorRectInfo);\n  }\n\n  ngOnChanges(changes: SimpleChanges): void {\n    let updateConnector = false;\n    for (const propName of Object.keys(changes)) {\n      const change = changes[propName];\n      if (!change.firstChange && change.currentValue !== change.previousValue) {\n        if (propName === 'mouseOverConnector') {\n          updateConnector = true;\n        }\n      }\n    }\n    if (updateConnector && this.modelservice.isEditable()) {\n      this.updateConnectorClass();\n    }\n  }\n\n  private updateConnectorClass() {\n    const element = $(this.elementRef.nativeElement);\n    if (this.connector === this.mouseOverConnector) {\n      element.addClass(FlowchartConstants.hoverClass);\n    } else {\n      element.removeClass(FlowchartConstants.hoverClass);\n    }\n  }\n\n  @HostListener('dragover', ['$event'])\n  dragover(event: Event | any) {\n    // Skip - conflict with magnet\n    /* if (this.modelservice.isEditable()) {\n      return this.callbacks.edgeDragoverConnector(event, this.connector);\n    }*/\n  }\n\n  @HostListener('drop', ['$event'])\n  drop(event: Event | any) {\n    if (this.modelservice.isEditable()) {\n      return this.callbacks.edgeDrop(event, this.connector);\n    }\n  }\n\n  @HostListener('dragend', ['$event'])\n  dragend(event: Event | any) {\n    if (this.modelservice.isEditable()) {\n      this.callbacks.edgeDragend(event);\n    }\n  }\n\n  @HostListener('dragstart', ['$event'])\n  dragstart(event: Event | any) {\n    if (this.modelservice.isEditable()) {\n      this.callbacks.edgeDragstart(event, this.connector);\n    }\n  }\n\n  @HostListener('mouseenter', ['$event'])\n  mouseenter(event: MouseEvent) {\n    if (this.modelservice.isEditable()) {\n      this.callbacks.connectorMouseEnter(event, this.connector);\n    }\n  }\n\n  @HostListener('mouseleave', ['$event'])\n  mouseleave(event: MouseEvent) {\n    if (this.modelservice.isEditable()) {\n      this.callbacks.connectorMouseLeave(event, this.connector);\n    }\n  }\n\n}\n"]}